52 lines
1.1 KiB
Rust
52 lines
1.1 KiB
Rust
use core::fmt::Display;
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use ref_cast::RefCast;
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use std::path::{Path, PathBuf};
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use thiserror::Error;
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#[derive(Error, Debug)]
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#[error("failed to read '{file}'")]
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struct StructPathBuf {
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file: PathBuf,
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}
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#[derive(Error, Debug, RefCast)]
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#[repr(C)]
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#[error("failed to read '{file}'")]
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struct StructPath {
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file: Path,
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}
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#[derive(Error, Debug)]
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enum EnumPathBuf {
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#[error("failed to read '{0}'")]
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Read(PathBuf),
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}
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#[derive(Error, Debug)]
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#[error("{tail}")]
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pub struct UnsizedError {
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pub head: i32,
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pub tail: str,
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}
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#[derive(Error, Debug)]
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pub enum BothError {
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#[error("display:{0} debug:{0:?}")]
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DisplayDebug(PathBuf),
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#[error("debug:{0:?} display:{0}")]
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DebugDisplay(PathBuf),
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}
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fn assert<T: Display>(expected: &str, value: T) {
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assert_eq!(expected, value.to_string());
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}
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#[test]
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fn test_display() {
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let path = Path::new("/thiserror");
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let file = path.to_owned();
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assert("failed to read '/thiserror'", StructPathBuf { file });
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let file = path.to_owned();
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assert("failed to read '/thiserror'", EnumPathBuf::Read(file));
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assert("failed to read '/thiserror'", StructPath::ref_cast(path));
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}
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